So, after the suggestions of the previous blog, I have prepared a new, improved interface for you to critique.

It features the following improvements/changes over the previous version:
* Backgrounds faded/darkened for open panels
* Resource bar text in white
* Black lines in build bar changed to red wood
* Tech panel/unit panel indicators altered (TEMPORARY!)
* Border added to minimap
* Damage type icons spaced further apart, shadows added
Things I'm definitely going to do (so don't suggest them):
* Add "button" look to remaining icons
* Improve panel indicators
* Improve minimap border
Also, which icon style do you like better for buildings?
(cartoonish or realistic)

Introversion's Subversion project is amazing. Basically, they've built a procedural city generation tool, which can also be modified to do other tasks. It's interesting. Go
look at it.
It's starting to look better, I also prefer the 'realistic' look icons. Though you should make sure that the icons themselves are not just a picture, but have a nice frame around them and such.
Readabillity has been massivley improved with the white text, which is a good sign, but I'd still urge you to ditch all of the texture/photo backgrounds for the GUI and pull out Photoshop and design some custom menus for the game.I don't have photoshop.
Realistic. Just use a part of a building that look unique compared to others… and is it just me, or does it look like there's a "hint toolbar" when you scroll over the icon? That should do it.
@omicrom1: Try <a href='http://www.fauxto.com'>this</a>.
You have to sign up first.
->Cesque: Yes, there is a "hint toolbar" of sorts - it displays resources needed, building name, and whether you have enough resources.
…And, it appears that the vote is 5-2 in favor of realistic.I'll do my best to make the icons distinct, then.